胺苯黄隆的除草效果与残留药害

Herbicidal effect and residual phytotoxicity of DPX-A7881

在小区试验条件下，对胺苯黄隆的除草效果进行了观察，并对其在移栽油菜上的药害和对后茬水稻的残留危害作了描述。结果表明，胺苯黄隆有较高的除草效果。在使用剂量超过１５ｇ每公顷（有效成份计，下同）时，对当季油菜的药害和后茬水稻的二次药害非常明显，可造成油菜籽产量下降３０．９６％～５７．８１％，并可使下茬水稻减产９．３４％～２３．２０％。

Based on plot experiment,the herbicidat effect of DPX-A7881 was observed The results show that DPX-A7881 has high herbicidal effect. Its phytotoxicity to rape and its sec- ondary phytotoxitity to the rotate paddy rice with application does of higher than 15 gAI/hm￣2 are 30.96 %～57,81 % of rape yield reduction and 9.34 %～23.20% of rotate paddy rice yield.